Hey Scott, hey all,
as far as I read the specs, Vectric Aspire differs from Vectric Vcarve Pro just by the 3D creating and editing tools. But you could do that with another tool (and use VCarve or another CAM software like FreeCAD Workbench just for importing the 3D model and export it as a g-code toolpath). The free and open 3D editing software Blender (Blender homepage) is excellent and very developed nowadays with many tools.
c’t Magazin, 23/2019, S. 144ff: Blender-Workshop, Teil 2